21877930

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{113}}^1\times {\mathrm{1019}}^1$

素因数の和:1158

約数の個数: 32

約数和(自身を含む): 41860800

約数和(自身を除く): 19982870

約数列:

[1, 2, 5, 10, 19, 38, 95, 113, 190, 226, 565, 1019, 1130, 2038, 2147, 4294, 5095, 10190, 10735, 19361, 21470, 38722, 96805, 115147, 193610, 230294, 575735, 1151470, 2187793, 4375586, 10938965, 21877930]

約数ペア:

[(1, 21877930), (2, 10938965), (5, 4375586), (10, 2187793), (19, 1151470), (38, 575735), (95, 230294), (113, 193610), (190, 115147), (226, 96805), (565, 38722), (1019, 21470), (1130, 19361), (2038, 10735), (2147, 10190), (4294, 5095)]